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Class Information
Number: 166/242.1
Name: Wells > Conduit wall or specific conduit end structure
Description: Apparatus comprising (a) a particular modification to a pipe through the thickness or (b) means at the end of a conduit for facilitating entry of the conduit into the well (e.g., casing shoes).
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7431082 |
Retaining lines in bypass groove on downhole equipment |
Oct. 7, 2008 |
| 7431348 |
Subsurface drill string |
Oct. 7, 2008 |
| 7409998 |
Critical velocity reduction in a gas well |
Aug. 12, 2008 |
| 7404440 |
Methods of using casing strings in subterranean cementing operations |
Jul. 29, 2008 |
| 7404438 |
Solid expandable tubular members formed from very low carbon steel and method |
Jul. 29, 2008 |
| 7387167 |
Insulating device and assembly |
Jun. 17, 2008 |
| 7377315 |
Complaint covering of a downhole component |
May. 27, 2008 |
| 7373974 |
Downhole release tool and method |
May. 20, 2008 |
| 7370700 |
Multiple entrance shunt |
May. 13, 2008 |
| 7357180 |
Inhibiting effects of sloughing in wellbores |
Apr. 15, 2008 |
| 7350565 |
Self-expandable cylinder in a downhole tool |
Apr. 1, 2008 |
| 7347258 |
Coated tools for use in oil well pipes |
Mar. 25, 2008 |
| 7337841 |
Casing comprising stress-absorbing materials and associated methods of use |
Mar. 4, 2008 |
| RE40067 |
Downhole equipment tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes |
Feb. 19, 2008 |
| 7303016 |
Casing with isolated annular space |
Dec. 4, 2007 |
| 7303022 |
Wired casing |
Dec. 4, 2007 |
| 7299867 |
Hanger mounted in the bore of a tubular component |
Nov. 27, 2007 |
| 7291303 |
Method for bonding a transmission line to a downhole tool |
Nov. 6, 2007 |
| 7290607 |
Device for the separation of the gas phase from a mixture of fluid/gas for use in hydrocarbons producing and injection wells |
Nov. 6, 2007 |
| 7284608 |
Casing strings and methods of using such strings in subterranean cementing operations |
Oct. 23, 2007 |
| 7275594 |
Stab guide |
Oct. 2, 2007 |
| 7243714 |
Well provided with flexible production tubing |
Jul. 17, 2007 |
| 7226243 |
Load-bearing, lightweight, and compact super-insulation system |
Jun. 5, 2007 |
| 7225875 |
Multi-layered wellbore junction |
Jun. 5, 2007 |
| 7219746 |
Apparatus and method for installing a branch junction from a main well |
May. 22, 2007 |
| 7219729 |
Permanent downhole deployment of optical sensors |
May. 22, 2007 |
| 7207383 |
Multiple entrance shunt |
Apr. 24, 2007 |
| 7195064 |
Mono-diameter wellbore casing |
Mar. 27, 2007 |
| 7191830 |
Annular pressure relief collar |
Mar. 20, 2007 |
| 7174958 |
Drill string member |
Feb. 13, 2007 |
| 7159653 |
Spacer sub |
Jan. 9, 2007 |
| 7125053 |
Pre-expanded connector for expandable downhole tubulars |
Oct. 24, 2006 |
| 7111680 |
Bore-lining tubing and method of use |
Sep. 26, 2006 |
| 7090010 |
Gauge carrier sub apparatus |
Aug. 15, 2006 |
| 7077197 |
Expandable tubular connection |
Jul. 18, 2006 |
| 7077210 |
Expansion method |
Jul. 18, 2006 |
| 7073594 |
Wireless downhole well interval inflow and injection control |
Jul. 11, 2006 |
| 7075454 |
Power generation using batteries with reconfigurable discharge |
Jul. 11, 2006 |
| 7073601 |
Profiled encapsulation for use with instrumented expandable tubular completions |
Jul. 11, 2006 |
| RE39141 |
Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes |
Jun. 27, 2006 |
| 7044219 |
Shock absorber |
May. 16, 2006 |
| 7040422 |
Drill string member |
May. 9, 2006 |
| 7017670 |
Apparatus and method for expanding and fixing a tubular member within another tubular member, a liner or a borehole |
Mar. 28, 2006 |
| 7013972 |
In situ thermal processing of an oil shale formation using a natural distributed combustor |
Mar. 21, 2006 |
| 7000695 |
Expanding wellbore junction |
Feb. 21, 2006 |
| 6997253 |
Anti-rotation method and apparatus for limiting rotation of cementing plugs |
Feb. 14, 2006 |
| 6994170 |
Expandable sand control screen assembly having fluid flow control capabilities and method for use of same |
Feb. 7, 2006 |
| 6991037 |
Multiple azimuth control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments |
Jan. 31, 2006 |
| 6978843 |
Well configuration and method of increasing production from a hydrocarbon well |
Dec. 27, 2005 |
| 6973969 |
Apparatus and methods for preventing or limiting rotation of cementing plugs |
Dec. 13, 2005 |
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